﻿using System;
using System.Collections.Generic;
using System.Web;
using System.Data;
using System.Text;
using System.Web.SessionState;

namespace jnxc.Web.instock
{
    /// <summary>
    /// GetInstock 的摘要说明
    /// </summary>
    public class GetInstock : IHttpHandler, IRequiresSessionState
    {
        jnxc.BLL.instock bll = new jnxc.BLL.instock();

        public void ProcessRequest(HttpContext context)
        {

            string ac = "";
            if (null != context.Request.Form["action"])
            {//获取前台传来的值  
                ac = context.Request.Form["action"].ToString().Trim();
            }            

            if (ac == "query")
                Query(context);           
        }     
        public void Query(HttpContext context)
        {


            context.Response.ContentType = "text/plain";
            int uid = Web.Admin.myinfo.getID(context);
            if (uid != 0)
            {
                string mname = "", StartTime = "", EndTime = "", otype = "2";               
                //获取前台传来的值 
                if (null != context.Request.Form["mname"])
                {//获取前台传来的值  
                    mname = context.Request.Form["mname"].ToString().Trim();
                }
                if (null != context.Request.Form["StartTime"])
                {//获取前台传来的值  
                    StartTime = context.Request.Form["StartTime"].ToString().Trim();
                }
                if (null != context.Request.Form["EndTime"])
                {//获取前台传来的值  
                    EndTime = context.Request.Form["EndTime"].ToString().Trim();
                }
                if (null != context.Request.Form["otype"])
                {//获取前台传来的值  
                    otype = context.Request.Form["otype"].ToString().Trim();
                }               
                //================================================================  
                //获取分页和排序信息：页大小，页码，排序方式，排序字段  
                int pageRows, page;
                pageRows = 10;
                page = 1;
                string order, sort, oderby; order = sort = oderby = "";
                if (null != context.Request.Form["rows"])
                {
                    pageRows = int.Parse(context.Request.Form["rows"].ToString().Trim());
                }
                if (null != context.Request.Form["page"])
                {
                    page = int.Parse(context.Request.Form["page"].ToString().Trim());
                }
                if (null != context.Request.Form["sort"])
                {
                    order = context.Request.Form["sort"].ToString().Trim();
                }
                if (null != context.Request.Form["order"])
                {
                    sort = context.Request.Form["order"].ToString().Trim();
                }
                StringBuilder strWhere = new StringBuilder();
                if (mname != "")
                {
                    strWhere.AppendFormat(" mname like '%{0}%' and ", mname);
                }
                if (StartTime != "")
                {
                    strWhere.AppendFormat(" intime>='{0}' and ", StartTime);
                }
                if (EndTime != "")
                {
                    strWhere.AppendFormat(" intime<='{0}' and ", EndTime);
                }
                if (otype != "2")
                {
                    strWhere.AppendFormat(" otype='{0}' and ", otype);
                }
                strWhere.AppendFormat(" uid={0} and ", uid);
                //删除多余的and  
                int startindex = strWhere.ToString().LastIndexOf("and");//获取最后一个and的位置  
                if (startindex >= 0)
                {
                    strWhere.Remove(startindex, 3);//删除多余的and关键字  
                }
                if (sort != "" && order != "")
                {
                    oderby = order + " " + sort;
                }
                DataSet ds = bll.GetListByPage(strWhere.ToString(), oderby, (page - 1) * pageRows + 1, page * pageRows);
                int count = bll.GetRecordCount(strWhere.ToString());//获取条数  
                string strJson = ToJson.Dataset2Json(ds, count);//DataSet数据转化为Json数据  
                context.Response.Write(strJson);//返回给前台页面  
                context.Response.End();
            }
            else
            {
                context.Response.Write("L");//返回给前台页面  
                context.Response.End();

            }
        }  


        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}